干旱区生态环境知识资源中心(Arid): 220 ka以来萨拉乌苏河流域地层磁化率与气候变化

Arid

	220 ka以来萨拉乌苏河流域地层磁化率与气候变化
其他题名	Climatic Change Reflected by Stratigraphical Magnetic Susceptibility in Salawusu River Basin, North China since 220ka BP
	靳鹤龄 1; 李明启 1; 苏志珠 2; 董光荣 1; 赵晖 1
ISSN	1000-694X
出版年	2006
卷号	26 期号:5 页码:680-686
中文摘要	萨拉乌苏河流域滴哨沟湾剖面磁化率变化结果表明:近220 ka来我国北方气候变化极不稳定,存在着不同尺度的频繁变化,特别是寒冷气候阶段变化尤为频繁,其中倒数第二次冰期存在5个气候旋回,末次冰期存在10个气候旋回.这些气候变化与深海氧同位素、极地冰芯反映的全球变化具有良好的对应关系,反映了该区气候变化与全球变化的一致性.控制本区气候变化的主要因素是全球冰量变化及太阳辐射影响的东亚季风变化.
英文摘要	The Salawusu River Basin is situated on the transition zone between desert and loess in North China, where belongs to the fragile ecotone and sensitively responses to the global climate change. So, the river basin is the ideal zone for global climate change research in China. Magnetic susceptibility is one of the effective indexes of reflecting environmental climate change, which has been widely applied in the research on Quaternary environment and climatic change. The variation sequence of magnetic susceptibility in the Disha-ogouwan profile in Salawusu River Basin showed that the climate in North China was very unstable since 220 ka BP, and frequently changed with different time periods. The climate in cold period fluctuated especially frequently. In detail, there were five climatic cycles in the penultimate Glaciation, and nine cycles in the Last Glaciation. These climatic changes are well accordant with the global climatic change reflected by the deep-sea oxygen isotope and the polar ice core, which has proved the consistency in time of climatic change between the study area and the global area. The main factors that control the climate of the study area are the ice amount variation of the world and the vicissitude of East Asian monsoon influenced by solar radiation.
中文关键词	萨拉乌苏河流域 ; 磁化率 ; 气候变化 ; 全球变化
英文关键词	Salawusu River Basin magnetic susceptibility climatic change global change
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:2441737
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220471
作者单位	1.中国科学院,寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 2.中国林业科学院荒漠化防治中心, 北京 100091, 中国
推荐引用方式 GB/T 7714	靳鹤龄,李明启,苏志珠,等. 220 ka以来萨拉乌苏河流域地层磁化率与气候变化[J]. 中国科学院西北生态环境资源研究院,2006,26(5):680-686.
APA	靳鹤龄,李明启,苏志珠,董光荣,&赵晖.(2006).220 ka以来萨拉乌苏河流域地层磁化率与气候变化.,26(5),680-686.
MLA	靳鹤龄,et al."220 ka以来萨拉乌苏河流域地层磁化率与气候变化".26.5(2006):680-686.